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GRUVLOK Clamp Coupling: Clamp, 3 1/2 in x 3 1/2 in, Ductile Iron, EPDM Seal - Grooved Pipe Couplings
GRUVLOKGrooved Pipe Couplings

GRUVLOK Clamp Coupling: Clamp, 3 1/2 in x 3 1/2 in, Ductile Iron, EPDM Seal

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 3-1/2 in x 3-1/2 in size, constructed of ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390000321)…

SKU 3G-OTH-468385

Brand
GRUVLOK
Item
Clamp Coupling: Clamp, 3 1/2 in x 3 1/2 in, Ductile Iron, EPDM Seal
Category
Grooved Pipe Couplings
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Technical Specifications

GRUVLOK
Manufacturer Part Number
0390000321
Type
3 1/2 in x 3 1/2 in, Ductile Iron, EPDM Seal, 300 psi @ 150° F
Fitting Pipe Size
3-1/2 in x 3-1/2 in
Maximum Operating Pressure
300 psi @ 150° F
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GRUVLOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRUVLOK Clamp Coupling is a grooved pipe coupling in a 3-1/2 in x 3-1/2 in size, constructed of ductile iron with an EPDM seal. It is rated for a maximum operating pressure of 300 psi at 150° F (MPN 0390000321). 3G Electric sources this genuine GRUVLOK component across 14 industrial departments, with specialist expertise in combustion, pumps and controls to support your piping system needs.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a GRUVLOK clamp coupling used for?

A GRUVLOK clamp coupling joins grooved-end pipe in industrial piping systems for water, oil, or chemical transfer. It provides a rigid, leak-resistant connection rated for 300 psi at 150° F, suitable for HVAC, fire protection, and process lines.

What are the specifications of the GRUVLOK 0390000321 coupling?

The GRUVLOK 0390000321 is a 3-1/2 in x 3-1/2 in ductile iron clamp coupling with an EPDM seal. It has a maximum operating pressure of 300 psi at 150° F. 3G Electric supplies this genuine GRUVLOK component for piping system needs.

Where to buy GRUVLOK clamp couplings worldwide?

3G Electric supplies GRUVLOK clamp couplings worldwide, handling logistics, customs, and delivery. As a global industrial solutions provider, we source genuine GRUVLOK components across 14 departments, including combustion, pumps, and controls, to support your piping requirements.

How to install a GRUVLOK grooved pipe coupling?

To install a GRUVLOK grooved pipe coupling, align the grooved pipe ends, place the gasket over the joint, and position the clamp housing over the gasket. Tighten bolts evenly to the manufacturer's torque specification. Always follow GRUVLOK's installation instructions for a secure seal.

Used in

Common applications for GRUVLOK
Fire-protection systems — GRUVLOK ductile iron butterfly valves (e.g., SKU 3DVX7) for water-based sprinkler and standpipe networks.
Chemical processing — GRUVLOK carbon steel butterfly valve with 316 stainless steel disc (SKU 60WR76) for handling corrosive media.
General water distribution — GRUVLOK ductile iron butterfly valve with EPDM seat (SKU 60WR98) for municipal or industrial water lines.
HVAC piping — GRUVLOK grooved-end butterfly valves for chilled water or hot water systems requiring quick installation.
Industrial process control — GRUVLOK lever-operated butterfly valve (SKU 60WR82) for throttling or isolation in chemical media applications.

GRUVLOK Products

3G Electric supplies GRUVLOK grooved pipe couplings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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